Polybenzimidazole/strontium cerate nanocomposites with enhanced proton conductivity for proton exchange membrane fuel cells operating at high temperature

Fabrication and physico-chemical properties of iron titanate nanoparticles based sulfonated poly (ether ether ketone) membrane for proton exchange membrane fuel cell application

“…Thus, to prevent drying of the membrane and keep the membrane at most conductive state, without external humidification, many composite membranes with self-humidifying ability have been developed. For example, incorporating hygroscopic metal oxides, such as silica [17][18][19][20][21], titania [13,[22][23][24], zeolites [25,26] montmorilonite [27], iron titanate [28], zirconia [29], strontium cerate [30] and barium zirconate [31,32] were developed to absorb water and accordingly improve the proton conductivity. These prepared nanocomposite membranes have presented good interfacial compatibility, enhanced water retention property and mechanical stability.…”

Novel nanocomposite membranes based on blended sulfonated poly(ether ether ketone)/poly(vinyl alcohol) containing sulfonated graphene oxide/Fe3O4 nanosheets for DMFC applications

“…It must be mentioned that, proton exchange membrane (PEM) plays an important role as essential component of DMFCs. 10,11 In recent years many researches have been occurred on preparation of blend and composite membrane by usage of inorganic material such as La 2 Ce 2 O 7 , 12 Fe 2 TiO 5 , 13 montmorillonite, 14 silica immobilized phosphotungstic acid (Si-PWA) 15 and alternative organic polymer such as sulfonated polyphtalazinone (SPP), 16,17 polybenzimidazole (PBI), [18][19][20] sulfonated poly(ether sulfone) (SPES), 21,22 poly(vinyl alchole) (PVA), 23,24 sulfonated poly(ether ether ketone) (SPEEK). The important points for improving the DMFCs performances are high proton conductivity and low methanol permeability.…”

In Situ Formed Phosphoric Acid/Phosphosilicate Nanoclusters in the Exceptional Enhancement of Durability of Polybenzimidazole Membrane Fuel Cells at Elevated High Temperatures

“…Various strategies have been developed to stabilize the PA in the membrane in order to improve proton conductivity, stability and cell performance under a high temperature operating regime [20,21]. Composite PBI membranes with inorganic solid oxide additives such as SiO2 [22], HfO2 [23] or ionic liquid impregnated zeolite [24] have demonstrated improvements in the proton conductivity at elevated temperatures.…”